A Troll is a Nordic mythological creature, may be: elves, dwarves, or monsters. Is a usually a giant that lives in caverns or undergrounds. It is also a well known internet meme.
They are quite short in stature and are violent in nature as their name suggests. Their appearance is similar to that of a goblin. They tend to live in caves and under bridges. Some say they are huge others say they're dwarves. These monsters live under bridges, in burrows underground or in caves. They rarely leave their lairs during the day because sunlight turns them into stone. Water trolls are agile in water but clumsy on land. But they all have strong teeth and jaws.
Gallery of trolls as imagined by various Nordic artists.
The sea troll (Theodor Kittelsen, 1887).
Forest troll. (Theodor Kittelsen, 1906).
Troll pondering its age. (Theodor Kittelsen, 1911).
The changeling (John Bauer, 1913).
Good evening, old man! the boy greeted (John Bauer, 1915).
An old mountain troll (John Bauer, 1904).
Media related to Trolls at Wikimedia Commons